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Service bulletin 3204B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10017413
Published by NHTSA2005-11-07
Manufacturer's number3204B
Replaces3204C
NHTSA componentSERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

NHTSA's summary

INSTALLATION OF AN AFTERMARKET TRAILER BRAKE MODULE. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Brakes, Anti-lock brakes

Vehicles listed
BUICK RAINIER2004, 2005, 2006
CHEVROLET TRACKER2002, 2003, 2004
CHEVROLET TRAILBLAZER2005, 2006
GMC ENVOY2002, 2003, 2004, 2005, 2006
OLDSMOBILE BRAVADA2004
SAAB 9-7X2005, 2006

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
PIT3271J2019-12-09. Service bulletin. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
PIT-50402011-05-09. Service bulletin. GM: THE ABS LIGHTS MAY COME ON INTERMITTENTLY WITH THREE POSSIBLE TROUBLE CODES. *RM
0405250022007-08-15. Service bulletin. ABS LIGHT ON, DTC'S C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. (REGROUND EBCM GROUND). *KB
38772007-02-02. Service bulletin. UNABLE TO LOCATE CONNECTOR C111 OR DTC C0186, C0196. ABS CONNECTOR LAMP. *KB
38322006-02-22. Service bulletin. ABS, RED BRAKE ,SVC AND 4WD LIGHT ON HVAC BLOWER INOPERATIVE. *AK UPDATED 1/30/08. *NJ
17501772006-02-17. Service bulletin. ABS BRAKE SVC AND 4WD LIGHT ON HVAC BLOWER INOPERATIVE. *AK
33472005-04-20. Service bulletin. ANTI-LOCK BRAKE SYSTEM (ABS) LIGHT ON DIAGNOSTIC TROUBLE CODE (DTC) C1232 LEFT FRONT WHEEL SPEED SENSOR. *TT
040525002B2004-08-13. Service bulletin. ANTI-LOCK BRAKE SYSTEM (ABS) LIGHT ON, DIAGNOSTIC TROUBLE CODES (DTCS) C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. *TT UPDATE. *TT
1307012001-10-30. Service bulletin. CUSTOMERS MAY COMPLAIN OF AN ANTI-LOCK BRAKE SYSTEM (ABS) OR BRAKE INDICATOR LIGHT ILLUMINATING OR A SERVICE BRAKE SYSTEM MESSAGE FROM THE DRIVER INFORMATION CENTER WITH A CODE OF C0238 IN THE ELECTRONIC BRAKE CONTROL MODULE. *TT